Dr. Anastasopoulou is an endocrinologist in private practice, affiliated with Albert Einstein Medical Center and Pennsylvania Hospital, Philadelphia, PA
Choose the single best answer for each question.

1. Which of the following is the most specific test to diagnose acromegaly?

2. A 35-year-old woman with amenorrhea is found to have an enlarged pituitary gland. Her prolactin level is 80 ng/L (normal, less than 20 ng/L), and her thyrotropin level is 100 µU/mL (normal, 0.5 to 4.5 µU/mL). Which of the following is the best treatment option for this patient?

4. A previously healthy 45-year-old man is hospitalized in the intensive care unit for almost a month, following a car accident that caused serious head trauma. During evaluation of the patient for tachycardia, he was found to have a thyrotropin level of 0.3 µU/mL (normal, 0.5 to 4.5 µU/mL) and a serum thyroxine level of 1.2 µg/dL (normal, 5 to 12 µg/dL). What is the most likely diagnosis for this patient?